Economies need a human-in-the-loop to adjust the settings every once in a while. That's what monetary policy does - it changes the money supply and interest rat

Economies need a human-in-the-loop to adjust the settings every once in a while. That's what monetary policy does - it changes the money supply and interest rates as a response to what happens in the economy. Thinking that you can lock that policy in place once and let it run forever is naive - it just doesn't work in practice. This is why we don't have the gold standard anymore - it was a system so bad that it eventually broke and we had to move away from it. That's where all the talk about sound money ends - money has to be "unsound" in order to work in the real world.